Retainer cap for fishing rod holder



FIG. 1 is a perspective view of a retainer cap for fishing rod holder showing my new design;

FIG. 2 is an enlarged top view thereof;

FIG. 3 is an enlarged front view thereof;

FIG. 4 is an enlarged rear view thereof;

FIG. 5 is an enlarged left side view thereof, the right side being a mirror image;

FIG. 6 is an enlarged bottom view thereof. 

The ornamental design for a retainer cap for fishing rod holder, as shown and described. 